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US 5,689,278 AGranted
Display control method
AssigneeMotorola, Inc.
InventorsDean Barker, Ralph Cisneros
Life of this patent
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Abstract
A display (10) utilizes a drive scheme that minimizes power dissipation by reducing the operating frequency at which columns (12) operate. The operating frequency is reduced by positioning column timing signals (32) near an end of a horizontal display time (38,39,48,49) if the next horizontal display time also has data to be displayed.
Claims7
A method of controlling a field emission display comprising:
- providing a field emission display having a first row, a second row, and a column, the first row overlying a first emitter and the second row overlying a second emitter;
- applying a first voltage to the first row for a first time period;
- applying a second voltage to the column near an end of the first time period for initiating electron emission from the first emitter during the first time period;
- and
- maintaining the second voltage on the column while applying a third voltage to the second row for a second time period for initiating electron emission from the second emitter near a beginning of the second time period wherein the second time period occurs after the end of the first time period.
2 more elements
Dependencies are inferred from the claim text.